Diff Report
Run #52f2e62091f2c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f2e62091f2cRun #52f2e60305388DiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)13,184 12,971 -213 -1.6%
Incl. Wall Time (microsec) per call 137 135 -2 -1.6%
Excl. Wall Time (microsec)1,204 1,246 42 3.5%
Incl. CPU (microsecs)12,045 11,740 -305 -2.5%
Incl. CPU (microsecs) per call 125 122 -3 -2.5%
Excl. CPU (microsec)1,080 1,104 24 2.2%
Incl. MemUse (bytes)2,488,576 2,488,528 -48 -0.0%
Incl. MemUse (bytes) per call 25,923 25,922 -1 -0.0%
Excl. MemUse (bytes)-400,360 -400,360 0 0.0%
Incl. PeakMemUse (bytes)2,932,960 2,932,896 -64 -0.0%
Incl. PeakMemUse (bytes) per call 30,552 30,551 -1 -0.0%
Excl. PeakMemUse (bytes)6,512 6,512 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -213 -15.2% -305 -11.1% -48 -23.1% -64 -8.9%
Exclusive Metrics Diff for Current Function42 19.7% 24 7.9% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -213 -100.0% -305 -100.0% -48 -100.0% -64 -100.0%
Child functions
unserialize0 N/A% -298 -139.9% -296 -97.0% -48 -100.0% 32 50.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 45 21.1% -36 -11.8% 0 0.0% -96 -150.0%
explode0 N/A% -5 -2.3% 1 0.3% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 3 1.4% 2 0.7% 0 0.0% 0 0.0%